Home / 212,528.92-316,284.41-205,441.96

Finding the Fourth Proportional to 212,528.92, 316,284.41 and 205,441.96

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Solution

The fourth proportional to 212,528.92, 316,284.41 and 205,441.96 is: 305,737.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,528.92 : 316,284.41 = 205,441.96 : x
  2. Step 2: Convert to fraction form
    212,528.92/316,284.41 = 205,441.96/x
  3. Step 3: Cross multiply
    212,528.92x = 316,284.41 × 205,441.96
  4. Step 4: Simplify right side
    212,528.92x = 64,978,089,107.84
  5. Step 5: Solve for x
    x = 64,978,089,107.84/212,528.92
  6. Step 6: Final answer
    x = 305,737.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.